Metallic receptacle



E. D. THOMPSON METALLIC RECEPTACLE June 18, 1935.

Filed Sept, 5, 1935 INVENTOR. E'JwarJ D.

HIS ATTORNEYS.

Patented June 18, 1935 v v UNITED STATES PATENTT OFFICE I METALLICnltclir'racnn Edward D. Thompson, Warren, Ohio, assignor to. The StevensMetal Products Company, Niles, Ohio, a corporation of Ohio ApplicationSeptember 5, 1933, Serial No. 688,107

2 Claims. (cl. 220-10) k M invention relates to sheet metal receptaclesFigured a view similar to that shown in Figsuch as drums, barrels andthe like and relates ure 5 in which the flanged walls of the body andmore particularly to that class which is formed end closure are rolledto form a double seam; of relatively heavy gauge sheet, wherein eitherFigure 7 shows the appl cation of a chime ring 5 or both of the endclosures are double seamed to to the double S m n lus r In full m s c thb dy, the completed seam; and, u t f the b'ects of m invention residesin a Figure 8 illustrates seeohd embodlmen 0 y 11131 13; {if for ni ng arein f orced double seam beinvention which is pertlculelly p d f r: utween the walls of the body and the end closures. in connection W h recp l s 0f the semi-1n- Another object of the invention consists inresuleted yD l inforcing a double seamed end structure for me- Referringfi st to Figures 1 to 7 inclusive, I tallic receptacles, whereby a verystrong end will D e 0 describe he double seam and structure is providedthus permitting rough meth0d 0f t hii the Seine according o th treatmentof the receptacles in transportation or N 22 5: i tl f t g dp ereference to the 15 oosein orsreadem men lusrae. y 15 22 3:, gfiiiig figof 1 p In containers of the full insulated type the s de A still furtherobject of the invention consists 'b Wallsof the contamer usually m pn gin bonding the abutting walls of a metallic retwo Shells fitted e w hinthe other as at fan ceptacle of the full or semi-insulated type circum-2 respectlvely, the Inner Shell b ig oilf talmnotfin 2o ferentially ofthe receptacle, before theend cloinside diameter until a t it is mse e wn sure is double seamed to the end walls of the h Outer shell h inner llmay then be I receptacle, whereby longitudinal movement bebflgedindicated in e d aw ng. I Referrillng tween the respective ,walls of thebody and/or particularly to Figure 2 it will be seen that w en the endclosure is substantially eliminated, and these shells are assembled theend of the e 25 25 strength provided to resist buckling of shellprojects beyond the end of the outer shell the walls when thereceptacleis dropped or is :i %g g: f i g b gig d gg: 33 53 tment. c ft lze r ilbj e t l a dv a n tzges g: my inv cumierentially of the body as at I, byany suitable will become more apparent as the following desuch *1 bywelding; i :3 :3 scription of two'embodiments thereof progresses, twe ni a e 5 timse nd reference being made to the accompanying drawispaevented 2 i zgg at in ing, in which like reference characters areempor are e y the vicinity of the weld. While perhaps "a, ployed todesignate like parts throughout the stronger bond may be obtained by acontinuous samea circumferential weld, it is to be understood that 35the drawing" the weld need not be continuous. The next step Figure ,1 isan elevatlon of a metallic receptaconsists in t ardly flanging theportion 3 of cle embodying one form of my invention, the the inner shellas indicatedm Figure Same shwn Partly in section: Similarly, each endclosure for the full insu- 40 Figure 2 IS a fragmentary section of thebody laud type may be f d by inserting the 40- walls of the receptacle,showing the same intishaped end piece 5 within t outer end closuremately bonded together circumferentially near The abutting walls of thend closures 5 d t e r ends; 4 t are similarly intimately bonded orwelded as at figure 3 is a View similar Figure 2 and I, preferablycircumferentially of the seam, there lustrates the second step incarrying out this embeing an outwardly extending flange 3 formed, on

bodiment of my invention wherein the inner wall 4 t t r a d closure I.

is flange utward y. when the end wallsof the body and the end Figure 4is a view of one of the end closures emclosure are thus formed they areassembled as pl in the embodiment shown in Figure 1 shown in Figure 5.In assembling these parts inwhich the walls of the end closure areintithe end closure preferably fits snugly within the mately bondedtogether, the outer wall being inner shell and is pressed downwardly inplace flanged outwardly. as indicated in the figure, the flange 8overlying Figure 5 is a similar view showing the struc- 'the flange I asshown.

- tures illustrated in Figures 3 and! assembled to- Further carrying outthe process of double gether. seaming the end structure and the flangesl and 8 are subjected to a rolling operation, so that the flange I isrolled inwardly and about the underside of the flange 3 as indicated inFigure 6.

The final step consists in applying the chime ring a which has a portionII which extends downwardly against the horizontal wall of the endclosure 5 and is provided with a portion II 'which is bent downwardly asindicated by the arrow and dotted lines as shown in Figure 7 to the fullline position in this flgure, wherein the end I! of the chime ring isbent inwardly toward the outer shell and upwardly against the roller.

ring is rolled into place in longitudinal movement of the receptaclebody walls and end closure walls is eliminated. I have found where suchrelative movement is permitted the double seam is subject to spreading,this being particularly true where a filled receptacle is dropped but afew feet on its side bilged walls. By my invention I believe thatthebonding of the walls as described not only reinforces the end structureat and in the vicinity of these walls but helps to distribute the shocksto which the receptacle is subjected in rough handling.

In Figure 8 I have illustrated my invention as applied to a receptacleof the semi-insulated type. In this form of the invention the innershell 2 is inserted in the outer shell I as previously described, theshells being intimately bonded together as at i. In carrying out thisform of my invention, however, the end closure l3 comprises a singlecup-shaped member, the upstanding flange ll being adapted to snugly fitagainst the upper end of the inner shell 2 when assembled in place. Theadjacent walls of the flange l4 and the shell 2 are also intimatelybonded together as bonds 4 and I5 preferably extending around theperiphery of the container. After these walls are thus assembled andbonded together, the chime ring !6 may be applied in the usual mannerand rolled so that the end I! is tightly pressed against the outer shellwall I. V It will be seen in connection with this embodiment of rm;invention that by intimately bonding the receptacle end walls I haveaccomplished the same advantages of reinforcement for the end structureas are accomplished in connection with the embodiment shown in Figures 1to 7, likewise in the second embodiment relative longitudinal movementbetween the walls vented.

By my invention I have produced a metallic receptacle having flxedclosed ends and which is extremely durable and rigid in use, thuspermitting rough handling without danger of disturbing the same orcausing leaks at the seam. Furthermore, the method of forming the endstructure embodying my invention is extremely simple and inexpensive tocarry out.

Various changes in the details of construction and arrangement of partsmay be made without departing from the spirit of my invention or thescope of the appended claims.

I claim:

1. A metallic receptacle comprising inner and outer shells spaced apartexcept in the vicinity of their outer ends, the end portion of the innershell overlapping the end of the outer shell, said ends of the shellsbeing firmly bonded together, an end closure for the open end of saidinner shell, saidend closure comprising flanged members spaced apartthroughout their body portion but closely fitting one within the otheralong their flanges, said closure flanges being firmly bonded together,the flange of the outermost member overlying the flange of the innermember and the overlapping end of the inner shell, said shelloverlapping ends and closure overlying flange being subsequently rolledover the respective remaining shell and closure ends into a double seam.

2. A metallic receptacle comprising a body, an end closure for saidbody, said body comprising an inner shell and an outer shell spacedapart from the greater portion of their length and welded togethercircumferentially near their terminal ends, the end of said inner shellextending beyond said outer shell end, said end closure having a flangeextending beyond said inner shell flange when the closure is in positionto close the receptacle open end, said inner shell end and said coverflange being rolled outwardly over the peripheral edge of said outershell end to form a double seam at the end of the receptacle.

EDWARD D. THOMPSON.

